from tkinter import *

coords=[0,0,
        10,0,
        10,10,
        20,10,
        20,20,
        10,20,
        10,30,
        0,30]
N = 2
X = 0
Y = 0
root = Tk()
root.title("ИT марафон")
root.geometry("500x500")

canvas = Canvas(bg= "white", width=500, heght=500)
canvas.pack(anchor=CENTER, expand=1)

canvas.create_polygon(coords[0] *N+X, coords[1], *N+Y,
                      coords[2] *N+X, coords[3], *N+Y,
                      coords[4] *N+X, coords[5], *N+Y,
                      coords[6] *N+X, coords[7], *N+Y,
                      coords[8] *N+X, coords[9], *N+Y,
                      coords[10]*N+X, coords[11],*N+Y)
root.mainloop()
                      
